Heater.



J. BHUM BACHER.

HEATER.

APPucAnoN men MAR. 4. m5.

Patented July 20, 1915.

JULIUS BROMBACHER, OF LOS ANGELES, CALIFORNIA.

HEATER.

Specification of Letters Patent.

Patented July 20, 1915.

Application filed March 4, 1915. Serial No. 12,168.

T 0 all whom it may concern Be it known that I, JULIUS BROMBACHER,

a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a certain new and useful Improvement in Heaters,-of which the following is a. specification.

My invention relates to an apparatus for heating water, and has especial reference to that. class of heaters in which is used a .coil

for heating the liquid, objects of the invenwater-may be drawn directly from the heatboiler gravitates to said tube.

'ing coil, instead of as formerly from the boiler; and in which the circulatory motion of the water may be reversed to flush the heater and keep the same clear of all ob s'tructing deposits.

Another object of this invention is to provide a heater in which all of the heat is utilized in heating the water, and the percentageof waste heat is reduced to a minimum, and to provide a simple, safe and economical heater which may be readily dissociated for repairs and quickly assembled.

These and other objects are accomplished by the heater shown in the accompanying drawing, the figure in which is a section of the device, illustrating my invention.

The heater comprises a boiler 1, arranged to be supplied with water through a pipe 2, extending within said boiler and to near the bottom thereof. The bottom of said boiler l is connected with a thermostatic tube 3, by a pipe 4, through which the water from the Connected to the end of said tube 3, by a coupling 4, is a housing 55, forming with saidcoupling 1 a chamber 6, for a valve 7, normally resting on lugs 8, integral with said coupling, and arranged to be forced against a valve seat 9 in said chamber (3, as hereinafter described. This valve comprises two disks A and B, the lower disk B having a beveled edge corresponding to the seat 9. and both disks being connected by a plurality of ribs 10, having semi-circular cut-out portions 11, for permitting the passage of the water when the valve disk B is resting on the lugs 8. The

disk A of the valve 7 normally closes the outlet 12, from the valve chamber 6 to a pipe 13, through which the water may be drawn as explained later.

Integral with and leading from said valve T chamber is a pipe 14 to which is attached,

by a union 15, the flaring end 16 of a-heatmg coil 16, supported on an annular plate 17, formed with a curved lip 18, on to which condensed products are arranged to fall. The convolutions of this coil 16 are arranged in the arc of a circle, as seen, in order to utilize all of the heat; to obtain av good combustion and to cause a circulation of the heat and maintain the circulation in moderation. This coil 16 as shown, and a portion of the boiler 1, are supported free of the wall or jacket 19 which surround the same, and interposed between said coil lG-and the wall 19, is a cylindrical collar 20, supported by legs 21 which rest on an annular U-shaped member 23, carrying the wall or jacket 19. This collar 20 supports the flaring edge 24 of a cylindrical heat deflector or baflle member 25 which extends centrally within the space formed by the coil, and on to which is secured a conical shell 26, for inducing a. draft and deflecting the flame and heat from a suitable burner or burners 27, supported below the coil 16 by a clip 28, against the coil. This deflector or baflle member 25 is disposed in proximity to the bottom of the boiler 1,- which is supported by lugs 29 on said member, affording by such disposition a space D for the passage of heat. Horizontally disposed within the space C, .formed between the jacket and the boiler, and occupying approximately two-thirds of the circumference thereof, is an annular flat ring 30, fitting tightly between the wall or jacket 19 and the boiler 1, and the space E, in which, is located diametrically opposite an-opening 31 in said wall, through which opening the used heat escapes.

. In operation the heat from the burners 27, passes upwardly, inside of and between the coil 16 and deflector 25; then strikes against the under side of the flaring edge 24 of said deflector; travels downwardly between the outsideof the coil 16 and the collar 20; then upwardly through the space C between the collar 20 and wall 19; then through the space D below the boiler; then upwardly through the space E in the ring 30, and finally passes out through the opening 31 in the wall 19. Thus by the circuitous travel of the heat as just described,

other end of said coil 16, connected to an inlet and outlet pipe 33, extending through and fastened in the bottom of said boiler.

This pipe 33 extends through an opening in said conical shell 26, and may be provided with a trap 34 for dirt and other foreign accumulations. The top of said pipe 33 extends to near the top of and on the inside of said boiler, and above the lower or discharge end of the inlet pipe 2, for purposes to appear presently. As is obvious from the construction as described, the coil 16, and other appurtenant parts may be readily removed for repair or cleaning without inconvenience or disarrangement, and quickly replaced for further use.

'. I have shown one portion of the coil 16 corrugated, but the entire coil may be thus constructed, for the purpose of dislodging,

cracking or breaking up any deposits of foreign matters, such' as alkali, or in fact any incrustations forming on the inside of the coil and tending to clog or impedethe flow of water therethrough, such dislodgment or cracking being effected by the contraction and expansion of the corrugated coil, caused by the alternate flow of hot and cold water.

The flushing of a heating coil and boiler is very essential, since accumulations of sand, dirt and other solids, are unavoidable, and such flushing may be made in this apparatus in the manner appearing from the following description of the operation of the heater.

The boiler 1, being'supplied with water from the service pipe 2, fiowsthrough the pipe 4, to the thermostat 3, thence through the coupling 22, past the valve 7, and thence into the coil 16. If the boiler is filled with water, it will gravitate through the pipe 33 to the coil 16. lVhen the water becomes heated, it will flow upwardly through the pipe 33, into the boiler, thence through the pipe 4:, thermostat 3, coil 16, finally entering the boilerl, the circulation continuing in this described manner as long as the heater is in operation. Assuming. now, that the hot water is drawn off through the pipe 13., by operation ot' a faucet or cock, the circulation of water will-be reversed. The

' water, lifting the valve 7-, escapes through 33 into the boiler, through the pipe 33 again, and finally through the coil. In this manner there is always a circulation when the heater is in operation, and the reversing circulatory motion of the water thoroughly cleanses the coils and carries ofl all sediment and other foreign substances. In theforegoing description of this device, I have referred to an inlet pipe 2, for supplying water to the boiler. 1 have discovered, however, that the supply may be furnished through a pipe 35, directly to the thermostat 3, in which event, the inlet pipe 2, is closed by a cap 36, or any other means.

What I claim is:

1. A heater comprising a boiler, a water supply pipe extending therein, a thermostatic tube, a pipe connecting the bottom of said boiler with said tube, a housing connected with said tube and formed with a horizontal pipe having an outlet port, and with a vertical pipe, a gravity valve member within said housing having two spaced disks, the upper of said disks normally closing the port in said horizontal pipe, and the lower of said disks arranged to close the in let to said housing, but normally unseated to cause the water to pass into said housing and through said vertical pipe, said valve member being lifted by, and opening the port in said horizontal pipe when hot Water is drawn therethrough and simultaneously forcing the lower disk against its seat to close the cold water inlet, a coil below said boiler and having one end thereof connected to said vertical pipe, a pipe extending within the boiler from below and having the other end of said coil connected thereto, and means to heat said coil.

2. A heater comprising a boiler, a water supply pipe extending therein, a thermostatic tube, an. outlet pipe connectingthe bottom of said boiler with said tube, a housing connected with said tube and forming avalve chamber, a valve seat in said chamber, a. pipe on said housing having an opening therein, a valve in said chamber normally iinseated and normally closing the opening in said pipe, said valve being movable by the water to uncover the opening in said pipe and seat the valve to prevent the flow of water from said tube, another .pipe on said housing and communicating with said valve chamber, a coil having one end connected to said last named pipe, and its other end connected to a pipe extending within said boiler and above the bottom of said supply pipe, means to heat said coil, a heat deflecting means within the coil, and a collar surrounding the coil to confine the heat to said coil.

3. A heater comprising a boiler, a water supply pipe extending therein, a thermostatic tube, a pipe connecting the bottom of said boiler with said tube, a housing con nected with said tube and formed with a horizontal pipe having a port, and with a vertical pipe, and a plurality of lugs, a coil below said boiler having one end connected with said vertical pipe, a pipe extending within said boiler from below and having the other end of said coil connected thereto, a' valve member in said housing having two spaced disks, 'theupper disk normally closing' the port in said horizontal pipe and the lower disk resting on said lugs in said housing and being normally unseated to cause the circulation of water through the connected elements in one direction, said upper disk being lifted and uncovering the port in and when hot water is drawn through the horizontal pipe, whereby the circulation of water occurs in a reverse direction and the lower disk is seated and closes the cold water inlet, and means to heat said coil.

4. A heater comprising a boiler, 21 water supply pipe extending therein, a thermostatic tube, an outlet pipe connected with the bottom of said boiler and with said tube, a housing attached to said tube and formed with a horizontal pipe having a port, and with a vertical pipe, and having a valve seat in the lower part thereof, a coil having one end connected to said vertical pipe, and the other end connected to a pipe extending within said boiler and above the'bottom of said supply pipe, a valve member in said housing having an upper disk normally closing the port in said horizontal pipe, and a lower disk arranged to close the inlet from said tube to said housing, but normally unseated by gravity to permit the circulation of water through the connected elements, said upper disk being movable and uncovering the port in said horizontal pipe by and when the water passes therethrough and simultaneously forcing said lower disk against the seat in said housing to stop the entrance of cold water to said housing, said valve member dropping by gravity to normal position when the flow of water through said horizontal pipe has stopped, and means toheat said coil.

In testimony whereof I afiix my signature in the presence of two witnesses.

JULIUS BROMBACHER. Witnesses: v

Emma E. VINSON,

ANTON GLoE'rzNER, Jr. 

